Cadillac Owners Forum banner
  • Hey everyone! Enter your ride HERE to be a part of JUNE's Ride of the Month Challenge!

1 - 4 of 4 Posts

·
Registered
03 CTS
Joined
·
2 Posts
Discussion Starter · #1 ·
What would cause P0134, P0158, P0343 at the same time. I just changed the upstream O2 sensor and nothing changed, Do I need to change the other O2 sensor and the Camshaft Position sensor?
 

·
Registered
03 CTS
Joined
·
2 Posts
Discussion Starter · #3 ·
Thanks, I just unplugged both plugs from the ECM blew them out and reconnected, started up without delay and no engine light... within 10 the light came back on and was delayed starting... my thought is if it were the CPS it would have had a delayed starting the first time so it leads me to think it is the ECM. Would a good shop be able to pin point to that before I go spend a lot of money?
 

·
Registered
2003 CTS "Ebony Maria" 2005 Cadillac STS "Grace"
Joined
·
6,414 Posts
a good shop can pin check the whole wiring system, probably cost you about 12 hours labor or so...you can pick up a new ECM from www.gmpartsdirect.com for about $240ish...just know, once you get a new ECM, you will need to have it programmed/flashed to your vin #, thereinwhich can only be done by the tech II machine
 
1 - 4 of 4 Posts
Top